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Diffstat (limited to 'Utilities/cmlibarchive/libarchive/archive_entry_perms.3')
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diff --git a/Utilities/cmlibarchive/libarchive/archive_entry_perms.3 b/Utilities/cmlibarchive/libarchive/archive_entry_perms.3 new file mode 100644 index 000000000..164af9731 --- /dev/null +++ b/Utilities/cmlibarchive/libarchive/archive_entry_perms.3 @@ -0,0 +1,207 @@ +.\" Copyright (c) 2003-2007 Tim Kientzle +.\" Copyright (c) 2010 Joerg Sonnenberger +.\" All rights reserved. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.Dd February 22, 2010 +.Dt ARCHIVE_ENTRY_PERMS 3 +.Os +.Sh NAME +.Nm archive_entry_gid , +.Nm archive_entry_set_gid , +.Nm archive_entry_uid , +.Nm archive_entry_set_uid , +.Nm archive_entry_perm , +.Nm archive_entry_set_perm , +.Nm archive_entry_strmode , +.Nm archive_entry_uname +.Nm archive_entry_uname_w +.Nm archive_entry_set_uname , +.Nm archive_entry_copy_uname , +.Nm archive_entry_copy_uname_w , +.Nm archive_entry_update_uname_utf8 , +.Nm archive_entry_gname , +.Nm archive_entry_gname_w , +.Nm archive_entry_set_gname , +.Nm archive_entry_copy_gname , +.Nm archive_entry_copy_gname_w , +.Nm archive_entry_update_gname_utf8 , +.Nm archive_entry_fflags , +.Nm archive_entry_fflags_text , +.Nm archive_entry_set_fflags , +.Nm archive_entry_copy_fflags_text , +.Nm archive_entry_copy_fflags_text_w +.Nd functions for manipulating ownership and permissions in archive entry descriptions +.Sh SYNOPSIS +.In archive_entry.h +.Ft gid_t +.Fn archive_entry_gid "struct archive_entry *a" +.Ft void +.Fn archive_entry_set_gid "struct archive_entry *a" "gid_t gid" +.Ft uid_t +.Fn archive_entry_uid "struct archive_entry *a" +.Ft void +.Fn archive_entry_set_uid "struct archive_entry *a" "uid_t uid" +.Ft mode_t +.Fn archive_entry_perm "struct archive_entry *a" +.Ft void +.Fn archive_entry_set_perm "struct archive_entry *a" "mode_t mode" +.Ft const char * +.Fn archive_entry_strmode "struct archive_entry *a" +.Ft const char * +.Fn archive_entry_gname "struct archive_entry *a" +.Ft const wchar_t * +.Fn archive_entry_gname_w "struct archive_entry *a" +.Ft void +.Fn archive_entry_set_gname "struct archive_entry *a" "const char *a" +.Ft void +.Fn archive_entry_copy_gname "struct archive_entry *a" "const char *name" +.Ft void +.Fn archive_entry_copy_gname_w "struct archive_entry *a" "const wchar_t *name" +.Ft int +.Fn archive_entry_update_gname_utf8 "struct archive_entry *a" "const char *name" +.Ft const char * +.Fn archive_entry_uname "struct archive_entry *a" +.Ft const wchar_t * +.Fn archive_entry_uname_w "struct archive_entry *a" +.Ft void +.Fn archive_entry_set_uname "struct archive_entry *a" "const char *name" +.Ft void +.Fn archive_entry_copy_uname "struct archive_entry *a" "const char *name" +.Ft void +.Fn archive_entry_copy_uname_w "struct archive_entry *a" "const wchar_t *name" +.Ft int +.Fn archive_entry_update_uname_utf8 "struct archive_entry *a" "const char *name" +.Ft void +.Fo archive_entry_fflags +.Fa "struct archive_entry *a" +.Fa "unsigned long *set_bits" +.Fa "unsigned long *clear_bits" +.Fc +.Ft const char * +.Fn archive_entry_fflags_text "struct archive_entry *a" +.Ft void +.Fo archive_entry_set_fflags +.Fa "struct archive_entry *a" +.Fa "unsigned long set_bits" +.Fa "unsigned long clear_bits" +.Fc +.Ft const char * +.Fn archive_entry_copy_fflags_text "struct archive_entry *a" "const char *text" +.Ft const wchar_t * +.Fn archive_entry_copy_fflags_text_w "struct archive_entry *a" "const wchar_t *text" +.Sh DESCRIPTION +.Ss User id, group id and mode +The functions +.Fn archive_entry_uid , +.Fn archive_entry_gid , +and +.Fn archive_entry_perm +can be used to extract the user id, group id and permission from the given entry. +The corresponding functions +.Fn archive_entry_set_uid , +.Fn archive_entry_set_gid , +and +.Fn archive_entry_set_perm +store the given user id, group id and permission in the entry. +The permission is also set as side effect of calling +.Fn archive_entry_set_mode . +.Pp +.Fn archive_entry_strmode +returns a string representation of the permission as used by the long mode of +.Xr ls 1 . +.Ss User and group name +User and group names can be provided in one of three different ways: +.Bl -tag -width "wchar_t *" +.It char * +Multibyte strings in the current locale. +.It wchar_t * +Wide character strings in the current locale. +The accessor functions are named +.Fn XXX_w . +.It UTF-8 +Unicode strings encoded as UTF-8. +This are convience functions to update both the multibyte and wide +character strings at the same time. +.El +.Pp +.Fn archive_entry_set_XXX +is an alias for +.Fn archive_entry_copy_XXX . +.Ss File Flags +File flags are transparently converted between a bitmap +representation and a textual format. +For example, if you set the bitmap and ask for text, the library +will build a canonical text format. +However, if you set a text format and request a text format, +you will get back the same text, even if it is ill-formed. +If you need to canonicalize a textual flags string, you should first set the +text form, then request the bitmap form, then use that to set the bitmap form. +Setting the bitmap format will clear the internal text representation +and force it to be reconstructed when you next request the text form. +.Pp +The bitmap format consists of two integers, one containing bits +that should be set, the other specifying bits that should be +cleared. +Bits not mentioned in either bitmap will be ignored. +Usually, the bitmap of bits to be cleared will be set to zero. +In unusual circumstances, you can force a fully-specified set +of file flags by setting the bitmap of flags to clear to the complement +of the bitmap of flags to set. +(This differs from +.Xr fflagstostr 3 , +which only includes names for set bits.) +Converting a bitmap to a textual string is a platform-specific +operation; bits that are not meaningful on the current platform +will be ignored. +.Pp +The canonical text format is a comma-separated list of flag names. +The +.Fn archive_entry_copy_fflags_text +and +.Fn archive_entry_copy_fflags_text_w +functions parse the provided text and sets the internal bitmap values. +This is a platform-specific operation; names that are not meaningful +on the current platform will be ignored. +The function returns a pointer to the start of the first name that was not +recognized, or NULL if every name was recognized. +Note that every name \(em including names that follow an unrecognized +name \(em will be evaluated, and the bitmaps will be set to reflect +every name that is recognized. +(In particular, this differs from +.Xr strtofflags 3 , +which stops parsing at the first unrecognized name.) +.Sh SEE ALSO +.Xr archive 3 , +.Xr archive_entry 3 , +.Xr archive_entry_acl 3 , +.Xr archive_read_disk 3 , +.Xr archive_write_disk 3 +.Sh BUGS +The platform types +.Vt uid_t +and +.Vt gid_t +are often 16 or 32 bit wide. +In this case it is possible that the ids can not be correctly restored +from archives and get truncated. |